<template>
    <div>
        <eg></eg>
        <div class="a">
            haha
            <div class="b">
                haha
            </div>
        </div>
    </div>
</template>

<script>
    export default {
        data: function(){
            return {
            }
        }
    }
</script>

<style scoped lang="scss">
    .a{
        color:black;
        .b{
            color:blue;
        }
    }
</style>